Common Ingredients to Avoid in Dog Treats

Bella A

Passionate about all things doggos. Proud WOOFIES ambassador and dog mum.

Not all dog treats are created with your dog’s health in mind. While many products are safe in a regulatory sense, they are not necessarily ideal for long-term wellbeing.

Understanding what to avoid is just as important as knowing what to look for.

Artificial Preservatives

Some of the most concerning additives in lower-quality dog treats are synthetic preservatives used to extend shelf life.

Common examples:

BHA (Butylated hydroxyanisole)

BHT (Butylated hydroxytoluene)

Ethoxyquin

These are used because they are effective and cheap, but they offer no nutritional benefit.

While approved in small quantities, they are unnecessary in high-quality treats that use natural preservation methods like dehydration.

Artificial Colours and Dyes

Dogs do not care about visual appearance – but humans do. As a result, many treats include artificial colours to make them more appealing to buyers.

Common dyes include:

Red 40

Yellow 5

Blue 2

These additives serve no functional purpose for dogs and are purely cosmetic.

Meat By-Products and Vague Proteins

One of the biggest red flags in dog treats is lack of clarity in protein sourcing.

Avoid labels such as:

Meat by-products

Animal derivatives

Poultry meal (without specification)

These terms can include a wide range of low-quality inputs and lack transparency regarding sourcing or nutritional consistency.

Excess Fillers and Cheap Carbohydrates

Fillers are often used to reduce production costs and bulk out product volume.

Common fillers include:

Corn

Wheat gluten

Soy isolates

Rice hulls

While not always harmful in isolation, they often displace higher-value nutrients and increase calorie load without meaningful benefit.

Added Sugars and Sweeteners

Dogs do not require sugar in any form.

Avoid ingredients such as:

Cane sugar

Corn syrup

Molasses (in excess)

Artificial sweeteners

⚠️ Important: Xylitol is extremely toxic to dogs and should never appear in any pet product.

Low-Quality Fats and Rendered Oils

Some treats use rendered fats sourced from unspecified animal origins.

These can:

Oxidise quickly

Cause digestive upset in sensitive dogs

Provide low nutritional value compared to natural fats

Better alternatives are clearly defined animal fats or fish-based oils.

Overly Complex Ingredient Lists

A surprising red flag is excessive complexity. If a treat contains long lists of chemical stabilisers, flavour enhancers, and binding agents, it’s often highly processed.

A good rule:If you need a chemistry degree to understand the label, it’s probably not a high-quality product.

Summary: Simplicity Protects Health

Avoiding low-quality ingredients is about reducing unnecessary risk and supporting long-term wellbeing.

The safest treats are:

Transparent

Simple

Naturally preserved

Free from artificial enhancement

In dog nutrition, simplicity is not a limitation – it’s a strength.

Pillar 2

“The Complete Guide to Using Treats for Dog Training.”

Are artificial preservatives in dog treats dangerous?

Artificial preservatives such as BHA and BHT have raised health concerns in animal studies, and many vets recommend avoiding them in your dog’s diet where possible. Choosing dog treats preserved naturally with ingredients like vitamin E (mixed tocopherols) or rosemary extract is a safer and healthier alternative.

Is xylitol dangerous for dogs in treats?

Yes, xylitol is extremely toxic to dogs and should never appear in any dog treat or food. Even small amounts can cause a rapid drop in blood sugar and lead to liver failure. Always check treat labels carefully, particularly for products marketed as ‘low sugar’ or made for human consumption before being repurposed as pet food.

Why are fillers bad in dog treats?

Fillers in dog treats, such as corn, soy, or wheat, add bulk and calories without providing meaningful nutrition for your dog. They can also contribute to weight gain, digestive upset, and allergic reactions in sensitive dogs. Avoiding fillers and choosing treats made with whole food ingredients ensures your dog is actually benefiting from every bite.

Frequently Asked Questions

What ingredients should I avoid in dog treats?

Common ingredients to avoid in dog treats include artificial preservatives like BHA, BHT, and ethoxyquin, as well as artificial colours and flavour enhancers. Fillers like corn syrup, wheat flour, and unnamed meat by-products are also red flags that suggest lower quality and nutritional value.